Stewards of the iconic buildings and grounds of Capitol Hill since 1793.

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Painting of meeting when Declaration of Independence was presented to the Second Continental Congress
This painting depicts the moment on June 28, 1776, when the first draft of the...

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View of the U.S. Capitol Building from above at dusk
In order to ensure the safety of visitors and staff and to preserve the...

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AOC members holding the Historic Preservation Award that they received
The Architect of the Capitol strives to perform all work at a high level of...

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The Capitol Crypt, which now houses statuary and exhibitions, was once used as an informal storage space where bicycles were parked, seen here circa 1900.
The term “crypt” has long referred to a space beneath the main floor of a...

Ionic Columns

The sun shining on the Ionic Columns on the Longworth House Office Building.
Overview 

The Ionic column is typically identified by its capital, which includes large paired spiral scrolls, or volutes. It has the tallest base of the three classic Greek orders. Columns in this style can be found throughout Capitol Hill, including the U.S. Capitol, the Supreme Court Building and the exterior of the Longworth House Office Building.

The Old Senate Chamber, located in the U.S. Capitol Building, is a two-story room modeled after the amphitheaters of antiquity. Eight Ionic columns of variegated marble quarried along the Potomac River support the Chamber’s gallery on the east wall; they were inspired by the columns of the Erechtheion in Athens.

The Supreme Court Building’s grand Court Chamber is a dignified room lighted by side windows behind screens of Ionic columns. The 24 columns are made of Old Convent Quarry Siena marble from Liguria, Italy.

The Longworth House Office Building is one of Washington’s best examples of the Neo-Classical Revival architecture. Its exterior features Ionic columns that support a well-proportioned entablature and are used for the building's five porticoes, the principal one of which is topped by a pediment.